Mental State Transition Network which consistsof mental states connected one another is a basic concept ofapproximating to human psychological and mental responses. Itcan represent transition from an emotional state to other onewith stimulus by calculating Emotion Generating Calculationsmethod. However, this method ignores most of emotions exceptfor an emotion which has the strongest effect although EGC cancalculate the degree of 20 emotions in parallel. In this paper,we investigate the discrepancy between the group of emotionsby EGC and the clustering results of the relation of sentencesand their emotions by Self Organizing Map. Mental state transitsbased on the group of emotions on the map. For example, a setof emotions in a group transits the mental state “happy,” andnegative mental state is enfeebled.Index Terms—Emotion Oriented Interface, Emotion GeneratingCalculations, Mental State Transition Network, Self OrganizingMap